feature #257 require php 5.6 (Tobion)

This PR was merged into the 3.x-dev branch.

Discussion
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require php 5.6

Closes #186. This requires php/symfony versions that are at least supported for security fixes. The doc is outdated with symfony flex and already explained in http://symfony.com/doc/current/logging.html

Commits
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f90347c require php 5.6

Author: fabpot

.travis.yml

@@ -15,9 +15,8 @@ env:
 matrix:
   fast_finish: true
   include:
-    - php: 5.3
+    - php: 5.6
       env: COMPOSER_FLAGS="--prefer-lowest" SYMFONY_DEPRECATIONS_HELPER=weak
-      dist: precise
     # Test against Symfony LTS versions
     - php: 5.6
       env: SYMFONY_VERSION="2.7.*"

Resources/doc/index.rst

@@ -16,16 +16,16 @@
         }
     ],
     "require": {
-        "php": ">=5.3.2",
-        "symfony/monolog-bridge": "~2.7|~3.0|~4.0",
-        "symfony/dependency-injection": "~2.7|~3.0|~4.0",
-        "symfony/config": "~2.7|~3.0|~4.0",
-        "symfony/http-kernel": "~2.7|~3.0|~4.0",
+        "php": ">=5.6",
+        "symfony/monolog-bridge": "~2.7|~3.3|~4.0",
+        "symfony/dependency-injection": "~2.7|~3.3|~4.0",
+        "symfony/config": "~2.7|~3.3|~4.0",
+        "symfony/http-kernel": "~2.7|~3.3|~4.0",
         "monolog/monolog": "~1.22"
     },
     "require-dev": {
-        "symfony/yaml": "~2.3|~3.0|~4.0",
-        "symfony/console": "~2.3|~3.0|~4.0",
+        "symfony/yaml": "~2.7|~3.3|~4.0",
+        "symfony/console": "~2.7|~3.3|~4.0",
         "symfony/phpunit-bridge": "^3.3|^4.0"
     },
     "autoload": {